Bracelet chain



.Dec. 18, 1928i E. PRESTINARI BRACELET CHAIN Filed NOV. 10, 1927INYENTOR.

- WWW ATTORNEYS.

i Patented Dec. 1928 l w i EUGEIN mnswim gbr invmeion, newJens'nmessienon renew J SEY CHAIN f2.:.conPoR4TIo1, on E ARK newfeiconeonm on 01 N W nn sn r.

BRACELET seem.

I App licetien-filedhl'oueinbcr 10,: 1327. Seiieill iier232,42 .f

I i This inventip'n' relates tb an iniprofved CQI1- structien (if chainorl brecelet" toi'nied'(if a plurality of eXtendi-ble links; jalndtheobject 0i this invention is to construct suchechein {or bracelethaying o'nter or guide fllnks formed 0f sheet; stock with interned portons atene end formed to receive leterally extend ing hqok ends Of theslide link inthe' next ed jacejnt guide link, the-entrance f seid heckymenIbersif the slide linl int e engagement J M showing the hoeken'ds'oftl eslidel-inlz esen the iextztdj iwith vsaid heel:neceiving "members e'tlthe guide link being controlled by e. depress1ble s e'nddporticn 'efthe rear wall efpthe guide sidewalls, e portion 9f the rear well beingdepressible andtheedges of thesidewalls being :said pockets 'only' whenthe 3 entrance turned overtheseef the rear Wall to prevent the [latterfrb lnflb'eing raised or meted-cu t Wardly relzi-tive te the lfront Wallthereof,

still further objec Of the invent en 1s the forming of inwardly turnedend portions n oneoffthe Wells 'otithe guide forming hook-receivingpocketsfind PIOVlCllIlgthQC'O operating slide-link with laterallyextendin'g v of construction, es bemere fully ClB-j scribed, andparticularly pointed outinthe' appendedclaiin's, H l 1 Inthe/accompanying dr gtwlngsz Figure 1 shows wplurelity cf linksfofsection of chain of my improved censtruetien Withjthe links in extendedposition, one of the links being broken away to shew the arrange ment'ofparts and the compressible spring acting upon the guide and slidelinks.

. Figure 2 is aperspectiveiriew ofthe guide ilinkshowing the seine inpartially closed pe-j sitien.

link.

. Figure 4 shpws theslide'linkns ineuntedin the guide 1'111'k, ,thegultldlllllbdlhg111 per-i tiall'y feldedpositioni" w I Figu'r'efi showsthe guide linkinfolded position Withthe hook en d of slide link'e itending therefrein; i v, r Figure 6- 's :r perspective fview showingthehook end of the slide link as extending from the guide link and alsoshowing one end of it further ebject (if 1 the when is the forming ofefguidelink withiront; rear and control Figure?) a perspective View ofthe therear ell d f-the guide li'nk' es be ingide;

pressed tofreceive thehc k efthej nfe t djac tis ifl k Figure 7 shewsthe'fslidelink effthe 'next adjacent unit with its heel: v ends enteringthe heokreceiving' pockets of the guide link; f

u Figure 8 shows thetwolinkunits es hboked together; onele t' 'theguidelinks being artly it insiectiong I F gure 9 is e plan V ew partly.111 se t} i? svantage to ipigovidellink units eem nsefl zt'guide' linkof thebok type in th c :15;-

nio'iinted a slide link (if name shape efndiftbii v p'rcyideneensatfeneendcif the guide "link 0; T6081 ve laterzilly-extendingihookshaped'rnein be-rsoiithe next ad acent slide/link andto' control theentrance of thehooks t6 the liQQk s s s v, b .i well cf the gu dellnk'whereby the links nty the chain ain dnlse te remei e y gs'inglelinkturbingf the oth'erfunit's'ctthe cliein' and the 'j- Q g is adetailed"description of'thef present en 'bcdniientjefmy invention "and,

it may b e-fielded to provide efrmit'well 11' ly depressed oroifsetinwardly from the jjl'ane ef the 'r eerwall to receive;theintuinededgesv 16 cf the side walls, which inturnedfedges "i serve to'breiientthe free 'end of'therea'r Well 1 V from an openingflinoveinentlor a:movement away froin the rent si-{pitting this 1 M i end'ef thereerwallzt' H 111g movement for t-lie pjurpese presentlyfdeif 11 eeinward 0r depress members y e d pressib e iier- 1 8O l dml i nd:disbonnectee fir dn'i 5 1.

' unit that may be but, of repair WitliOtit dis-i showing onearrangementotfchziin"links-by, I i which these tdvantageo'us fresultjs maybe ac- Ic(')n 1plished: With reference to the drawings, '10] desig-' IlELtQS theguide link WlllCll" lSQfOimd sheet stock into the desired bexfferm sdthe t The en-d of t-his'gui'de link oppos ite-tlie ceni turned 'nelnbers or fingers 17' "preferably f V necting neck portion 14 isprovided with 111-,

formed into ral with the ends of the side walls 12, t iese inturnedportions being somewhat in arcuate shape forming pockets 18 for thereception of the laterally extending hook ends 19 of the frame-shapedslide link 20 which is mounted to slide en-dways in each of the guidelinks.

The side arms 21 of this frameshaped slide link straddle the narrow neckortion 14 andthe inner ends 22 of this slide ink are connected by across bar 23 which serves an abutment for the com ression s ring 24which is arranged to act etween his cross bar 23 and the neck member 14.

In assembling these parts the side arms 21 of the frame shaped slidelink are passed inwardly to straddle the neck portion 14: of the guidelink and the dovetailed ends of the cross bar 23 are then positioned andsecured A (ZOIILIJIESSIQlL between these side arms. spring 24 is theninserted to act upon the neck i ieinbcr 14 and this cross bar 23. Nextthe" rear wall 13 is folded down into position illustrated in Figure 8and the edges 16 of the side walls 12 are folded over the degressededges ringing the 15 of this rear wall thereby edges 16 flush with theplane of the middle portion of this rear Wall leaving the unat tachedend 25 of this rear wall free to be depressed inwardly towards the frontwall, the inturned edges 16 preventing it from being o eiied outwardlyand thus the unit is com- 1) etc.

In assembling the different units, it is only necessary to drawoutwardly the hook end of the slide link, depress the free end 25 of itsrear Wall and pass these hook ends 19 into engagement with the inturnedmembers 17 of the next adjacent guide link and the units are connectedtogether.

My improved construction is very simple and practical to ii'ianufactureand assemble and is very handsome and attractive in apliearaiice whenthe unitsarc connected into ageneral formation. a a

The foregoing description is directed solely towards the construct-ionillustrated, but I desire itto be understood that I reserve theprivilege of resorting to all the mechanical changes to which the deviceis susceptible,

being depressible and arranged to control the entrance to saidhook-receiving pockets to permit the passage of the hooks to and fromsaid pockets and a slide link insaid guide link having laterallyextending hook portions shaped to enter and leave said pockets in thenext adjacent guide link when the rear wall thereof is depressed.

2. A bracelet chainstructure comprising a series of extendible linkunits each having a guide link formed of sheet stockfolded to providefront, rear and side walls and a narrow connecting neck portion formingpart of one end wall, portions of walls atthe opposite end of the guidelink being folded iiiwardly providing hook-receiving pocket-s, one endof said rear wall being depress ble and arranged to control theentranceto said hookreceiving pockets, a slide link in said guide, 7

link having laterally-extending hook portions" shaped to enter and leavesaid pockets in the next adjacent guide link wlienthe rear Wall thereofis depressed, and means for prevent ingthe depressible end of said rearwall from beingraiscd from its normal'plane.

3. A bracelet chain structure com )risin a a a l a: series of extendiblelink units each having a guide link formed of sheet stock folded toprovide front and side walls and a rear wall .depiessible at one end,the edges of the side walls being folded over those of the rear wallsecuring the latter against a movement away from the front wall, anintegral neck portion connecting one end of the front and rear walls,portions of the walls at the opposite end of this link being foldedinwardly fornt ing hook-engaging members, and a slide link in said guidelink having laterally-extending hook portions shaped to engage said enagiiig members in the next adpzeent guide link "only when said i'earwallthereof is depressed.

4. A bracelet chain structure comprising a series of extendiblelinkunits each having a guide link formed of sheet stock folded toprovide front, rear and side walls and a narrow connecting neck portionforming part of one end wall, portions of the side walls at the oppositeend of the guide link being folded inwardly providing hook-receivingpockets, one endof said rear wall being depressible and arranged tocontrol the entrance to said hook-receiving pockets, :1 slide link insaid guide link having laterally extending hook portions shaped to enterand leave said pockets in the next adjacent guide link when the rearwall thereof is depressed, and tlieedges of saidside walls being turnedinwardly over those ofsaid rear wall to pree vent the depressible end ofsaid rear wall from being raised from its normal plane.

In testimony whereof I affix my signature.

EUGEN PRESTINARI.

